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Illustration of Advanced file input and output:
For illustration, to refer to the third number in the first element of the cell array:
>> subjdata{1}(3)
ans =
3.3000
The script which reads in this data and echo-prints it is shown here:
Executing this script generates the following results which are as shown below:
>> textscanex
5.3 a
2.2 b
3.3 a
4.4 a
1.1 b
File close successful
To conclude, we know four techniques of reading from a file. The function load will only work when the values in the file are all of similar type and there is similar number on every line in the file, so that they can be read into the matrix. If this is not the situation, lower level functions should be used. To use these, the file should be opened first and then closed whenever the reading has been done. The fscanf function will read into the matrix, converting the characters to their ASCII equivalents. The textscan function will rather read into a cell array which stores each column from the file into individual column vectors of the cell array. At last, the fgetl function can be used in a loop to read each line from the file as an individual string; the string manipulating functions should then be used to break the string into pieces and convert to numbers.
Indexed empty matrix: The Individual elements cannot be eliminated from matrices, as matrices always have the similar number of elements in every row. >> mat = [7 9 8; 4 6
Print an imaginary number: To print an imaginary number, the function disp will show both parts automatically: >> disp(z1) 4.0000 + 2.0000i The function fprint
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Three-Dimensional Plots: The MATLAB has many functions which will display three-dimensional plots. Most of these functions have similar name as corresponding two-dimensional p
Nested IF-ELSE statements: The if-else statement is used to select between the two statements. In order to select from more than two statements, the if-else statements can als
Illustration of Standard Deviation The less spread out the numbers are, therefore smaller the standard deviation will be, as it is a way of determining the spread of the data.
Three-dimensional pie and bar: For the bar3 function, x & y vectors are passed and the function displays three-dimensional bars as shown in figure: Figure: Three-dimen
Creating string Variables: The string consists of a few numbers of characters (including, possibly, none). These are the illustrations of the strings: '' 'x' 'ca
Labels and Prompts: The script loads all the numbers from file into a row vector. It then splits the vector; it stores the initial element that is the experiment number in a v
Illustration of nested function: The output arguments are distinct from variables. The scope of an output argument is merely the nested function; and it cannot be used in the
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